Sopor is a condition of abnormally deep

sleep Sleep is a sedentary state of mind and body. It is characterized by altered consciousness, relatively inhibited sensory activity, reduced muscle activity and reduced interactions with surroundings. It is distinguished from wakefulness by a de ...

or a stupor from which it is difficult to rouse a person. It involves a profound depression of consciousness, which is manifested by

drowsiness Somnolence (alternatively sleepiness or drowsiness) is a state of strong desire for sleep, or sleeping for unusually long periods (compare hypersomnia). It has distinct meanings and causes. It can refer to the usual state preceding falling asleep ...

, while maintaining coordinated defensive reactions to stimuli such as pain, harsh sound, and bright light, and preserving

vital function Vital signs (also known as vitals) are a group of the four to six most crucial medical signs that indicate the status of the body's vital (life-sustaining) functions. These measurements are taken to help assess the general physical health of a p ...

s. Sopor may be caused by a drug; such drugs are deemed soporific. A stupor is more severe than a sopor. The name is derived from Latin ''

sopor Sopor may refer to: * Sopor (sleep) * Sopor Aeternus, musical project * Methaqualone, by the trade name ''Sopor'' See also * Sopore Sopore, known as Suyyapur in antiquity, is a city in the Baramulla district of Jammu and Kashmir, India. It i ...

'' ( cognate with the Latin noun ''

somnus In Roman mythology, Somnus ("sleep") is the personification of sleep. His Greek counterpart is Hypnos. Somnus resided in the underworld. According to Virgil, Somnus was the brother of Death ( Mors), and according to Ovid, Somnus had a 'thousand ...

'' and the Greek noun ὐπνος, ''

hypnos In Greek mythology, Hypnos (; Ancient Greek: means 'sleep') also spelled Hypnus is the personification of sleep; the Roman equivalent is known as Somnus. His name is the origin of the word hypnosis. Pausanias wrote that Hypnos was a dear ...

'').

Causes and symptoms

Soporous states can be caused traumatic, vascular, inflammatory, neoplastic, and toxic lesions of the brain. Symptoms include lack of response to the environment, perform any tasks, or respond to questions, but the ability to swallow is maintained. Examination will reveal decreased muscle tone of the extremities and depression of tendon reflexes. Pupillary reaction to light may be sluggish, but the corneal reflexes are preserved.

Paresis In medicine, paresis () is a condition typified by a weakness of voluntary movement, or by partial loss of voluntary movement or by impaired movement. When used without qualifiers, it usually refers to the limbs, but it can also be used to desc ...

and

Babinski sign The plantar reflex is a reflex elicited when the sole of the foot is stimulated with a blunt instrument. The reflex can take one of two forms. In healthy adults, the plantar reflex causes a downward response of the hallux (flexion). An upward re ...

may be present.

References

{{Disorders of consciousness Sleep Medical terminology